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Last change
on this file since 91772 was 91772, checked in by vboxsync, 3 years ago |
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openssl-1.1.1l: Applied and adjusted our OpenSSL changes to 1.1.1l. bugref:10126
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File size:
1.1 KB
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| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | BIO_s_null - null data sink
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| 6 |
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| 7 | =head1 SYNOPSIS
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| 8 |
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| 9 | #include <openssl/bio.h>
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| 10 |
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| 11 | const BIO_METHOD *BIO_s_null(void);
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| 12 |
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| 13 | =head1 DESCRIPTION
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| 14 |
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| 15 | BIO_s_null() returns the null sink BIO method. Data written to
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| 16 | the null sink is discarded, reads return EOF.
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| 17 |
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| 18 | =head1 NOTES
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| 19 |
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| 20 | A null sink BIO behaves in a similar manner to the Unix /dev/null
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| 21 | device.
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| 22 |
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| 23 | A null bio can be placed on the end of a chain to discard any data
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| 24 | passed through it.
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| 25 |
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| 26 | A null sink is useful if, for example, an application wishes to digest some
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| 27 | data by writing through a digest bio but not send the digested data anywhere.
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| 28 | Since a BIO chain must normally include a source/sink BIO this can be achieved
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| 29 | by adding a null sink BIO to the end of the chain
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| 30 |
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| 31 | =head1 RETURN VALUES
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| 32 |
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| 33 | BIO_s_null() returns the null sink BIO method.
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| 34 |
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| 35 | =head1 COPYRIGHT
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| 36 |
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| 37 | Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 38 |
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| 39 | Licensed under the OpenSSL license (the "License"). You may not use
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| 40 | this file except in compliance with the License. You can obtain a copy
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| 41 | in the file LICENSE in the source distribution or at
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| 42 | L<https://www.openssl.org/source/license.html>.
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| 43 |
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| 44 | =cut
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